Printed to accompany the movie,
Nanny McPhee, this edition is a compilation of the "Nurse Matilda" stories, upon which the movie was (very loosely) based. In one volume it contains the books
Nurse Matilda, Nurse Matilda Goes to Town, and
Nurse Matilda Goes to Hospital.
In the first book, Nurse Matilda comes to take care of, and teach some badly needed lessons to, the horribly naughty Brown brood, which she does with a magic cane that causes the children to go on repeating their current misbehavior until they are sick of it. In the second book, Nurse Matilda comes back to take care of, and teach some badly needed lessons to, the Brown brood, who have gone back to being horribly naughty. And in the third book ... well, you get the idea.
These same three books are also being published in one volume under a different title: Nurse Matilda: the Collected Tales.